The Government Accountability Office says cybersecurity is a “critical” challenge for the agency.

The Establishing Digital Interactive Transparency Act would require congressional bills posted online to include a “track changes-style system”showing all the tweaks made to legislation as it makes its way through Congress.

Of the 25 largest federal agencies slated for the effort, just three currently have officially chartered digital service teams.

The announcement came just a day before the release of a new report that revealed the IRS did not identify all taxpayers whose sensitive tax information may have been improperly accessed by cybercriminals.